Improvement in hammer-roll devices for forming horseshoe nails



T. HARRIS ellP' nuuu.

Hammer'RoII Devices for Forming Horse-Shoe Nails.

No.134,664. V Patentedjah.7, 1873.

7707/7 as. Q I l'm/en/i/ ora JAM/W MMQ W mam/Q UNITED STATES PATENTOFFICE.

THOMAS HARRIS AND PATRICK DUNN, OF COTE ST. PAUL, CANADA.

IMPROVEMENT IN HAMMER-ROLL DEVICES FOR FORMING HORSESHOE NAILS.

Specification forming part of Letters Patent No. 134,664, dated J annary7, 1873.

To all whom it may concern:

Be it known that we, THOMAS HARRIS and PATRICK DUNN, of Oot St, Paul,province of Quebec, Dominion of Canada, have invented certain" new anduseful Improvements in Roll- Stocks for Horse-Nail Machines; and we dohereby declare the following to be a full, clear, and exact descriptionof the same, reference being had to the accompanying drawing making apart of this specification, in which- Figure 1 represents in perspectivethe rollstock and shaft to which it is attached, and with which itrevolves. Fig. 2 represents on an enlarged scale a longitudinal sectionthrough the roll-stock and shaft, and Fig. 3 represents on a similarlyenlarged scale a transverse section through the roll-stock and shaft.

Similar letters of reference where they occur in the separate figuresdenote like parts in the drawing.

Our invention relates, first, to a means of adjusting the roll. or rollsin horse-nail machines to suit the thickness of the nails to be made;and second, to a means of fixing the roll-pin or pins in place, andpreventing the roll from wearing the sides of the stock.

To enable others skilled in the art to make and use our invention wewill proceed to describe the same with reference to the drawmg.

The roll-stock a has a shank, b, which passes through the shaft A, andis held to said shaft by a screw-nut, c, as seen in the drawing. Theshoulders d d of the roll-stock rest upon wedge-shaped keys 6 6, so thatsaid stock and its roll f may be adjusted by first loosening the nut c,then moving the wedges or keys 0 e, and finally by tightening up the nutto hold the stock and roll at its adjusted position.

The shaft or axle pin i on which the roll f runs is firmly held in thestock a, so that it cannot work out, by means of steel pins n a, theinner ends of which rest upon one of the keys 6, and the outer endsthereof bearing against the shaft or pin t, and thus not only holding itfirmly in proper position, but preventing it from workingout of thestock. The

pins n n at their outer ends may also form a portion of the walls of therecess in which the roll f runs, and being of hardened steel prevent theroll from wearing the stock laterally.

Having thus fully described our invention, what we claim is- 1. Incombination with the stock a and its roll. f, shank b, and nut c, thewedge-shaped keys 0 c for adjusting said roll to the thickness of thenails to be made, substantially as described.

2. The combination of the wedge or key 0, the pins n n, and the shaft orroll-pin t", as and for the purpose described and represent- THOMASHARRIS. PATRICK DUNN.

Witnesses W. P. MEGUIR-E, H. B. WRIGHT.

